SN4 ""

No	Pattern	Freq
1	be difficult [verb] that [noun]	22
2	[be] difficult [verb] that [noun]	22
3	is difficult [verb] that [noun]	17
4	[is] difficult [verb] that [noun]	17
5	[adv] difficult [verb] that [noun]	11
6	[pron] difficult [verb] that [noun]	7
7	[pers pn] difficult [verb] that [noun]	7
8	[adv] difficult [verb] that [noun]	7
9	it difficult [verb] that [noun]	7
10	it difficult [verb] that [noun]	7
11	difficult [verb] that [art] [noun]	60
12	difficult [verb] that [art] [noun]	60
13	difficult [verb] that the [noun]	41
14	difficult [verb] that the [noun]	41
15	difficult [verb] that [adj] [noun]	19
16	difficult [verb] that a [noun]	16
17	difficult [verb] that a [noun]	15
18	difficult [verb] that [adj] [noun]	11
19	difficult [verb] that [det] [noun]	8
20	difficult [verb] that [noun] [noun]	5
21	difficult [verb] that [noun] [verb]	11
22	difficult [verb] that [noun] [vb mod]	7
23	difficult [verb] that [noun] [modal v]	7
24	difficult [verb] that [noun] [be]	5
25	difficult [verb] that [noun] [vb base]	5
26	difficult [verb] that [noun] have	5
27	difficult [verb] that [noun] [vb past]	5
28	difficult [verb] that [noun] [noun]	5
29	difficult [verb] that [noun] be	5